Development of NanoCAP (nano composite advanced particles) technology for high density recording

Author

Sasaki, Y. ; Usuki, N. ; Matsuo, K. ; Kishimoto, M.

Author_Institution

Div. of Dev. & Technol., Hitachi Maxell Ltd., Kyoto, Japan

fYear

2005

fDate

4-8 April 2005

Firstpage

1721

Lastpage

1722

Abstract

In this paper, nanosized spherical magnetite particles, with the coercivity force of about 3000 Oe was developed. This material was named NanoCAP (nano composite advanced particles). This study described both magnetic and structural properties of NanoCAP. The crystal structure and the microstructure of the particles were examined using an X-ray diffractometer and high resolution transmission electron microscope, respectively. The obtained magnetization and coercivity of the particles were 89 emu/g and 2900 Oe, respectively. NanoCAP is expected to be the most promising candidate for ultrahigh capacity recording tapes.

Keywords

X-ray diffraction; coercive force; crystal microstructure; crystal structure; ferromagnetic materials; iron compounds; magnetic particles; magnetic recording; nanocomposites; nanoparticles; transmission electron microscopy; Fe₃O₄; X-ray diffractometer; coercivity force; crystal structure; high density recording; high resolution transmission electron microscope; magnetic properties; magnetite particles; magnetization; microstructure; nanocomposite advanced particles; nanosized spherical particles; structural properties; ultrahigh capacity recording tapes; Coercive force; Composite materials; Crystal microstructure; Crystalline materials; Electrons; Magnetic materials; Magnetic properties; Magnetic recording; Nanostructured materials; X-ray diffraction;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1464294

Filename

1464294